Improvement in power-capstans



3 Sheets--Sheet 3. J, P. MANTUN & G. H. REMINGTON.

Pu'wer-Gapstans. No.155,877. Patented oct. 13.1374.

THE GRAPHIC CG. FHOT-LITH.39& 4l PARK PLACE, KY.

UNITED STATES JOSEPH P. MANTON AND GEORGE H. REMINGTON, OF PROVIDENCE, R. I.V

IMPROVEMENT IN POWER-CAPSTANS.

Specification forming part of Letters Patent No. 155,877, dated October 13, 1874 application filed September 5, 1874.

To all whom it may concern:

Be it known that we, JOSEPH P. MANTON and GEORGE H. REMINGTON, both of the city and county of Providence, State of Rhode Island, have invented a new and useful Improvement in Power-Oapstans; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings forming part of this specification, in which similar letters of reference indicate corresponding parts.

Figure I is an elevation of our improved eapstan, partly in view and partly in section, showing the relative positions of the engines A A, the worm O, the worm-gear D, the driving-head E, and their relation to the vertical shaft G, as also the positions of the capstanhead X, the capstan-barrel Q, the Wildcat It, and friction-brake N, with the central shaft G. Fig. Il is a horizontal section, showing the power-gear I in section and the Wildcat It partly in view. Fig. III shows the arrangement of the engines, with the worm C, wormgear D, and the driving-head E, and their relation to the vertical shaft G.

Our invention consists in the direct application of en gine-power to a capstan or windlass, in which a capstan-barrel, a Wildcat, frictionbrake, and compound gear are combined, so that by a simple manipulation the enginepower maybe applied to either or both the barrel or wildcat; and, also, the compound gear may be readily applied to either, and so the power increased, while, by a simple manipulation, the whole mayy also be worked by hand with capstan-bars, in the usual manner, and both by hand or engine power, in either direction.

In the drawings, X is the capstan-head, furnished with socket-holes S, for the insertion of the capstan-bars. rlhis capstan-head X is permanently keyed on the shaft G. Next to and below the capstan-head is the capstan-barrel Q, fitting the shaft G, but turning freely on the same. Below this is the wildcat It, which turns freely upon the sleeve Z, which encompasses the shaft G, and also turns freely on the same. Onto the upper end of the sleeve Cast onto the lower end of the sleeve Z, and Y forming part of the same, is a circular diskplate, having a number of locking-socketssome in the top part of the same, to receive the key-block M, and others in the periphery, to correspond with the locking-socket L.

When, now, the locking or key block M is i11- serted in to the locking-socket in the base of the Wildcat It, the key-block L being still in place at the base of the barrel, it will be seen that, by means of the sleeve Z, the disk Y, and the key-blovcks L and M, the capstan-barrel Q, the wildcat lt, and the sleeve Z are firmly secured together, but are still free to revolve on the shaft G, and not affected by the revolving of the capstan-head X,or the shaft, while both are under complete control of the frictionbrake N, the brake-surface forming the lower rim of the wildcat, surrounded by the frictionstrap N, which can be operated by either or both of the two eccentric levers O and handspikes P.

The toothed gear-wheel II is cast in one piece with thercircular disk, containing locking-sockets corresponding with the lockingsocket L, and is firmly keyed or secured to the shaft G, and revolves with the same.

If, now, the key-block is placed into the socket L, the wildcat It, the barrel Q, and capstan -head X are all iirmly secured to the shaft G, and, when the eapstan-head is turned by the eapstan-bars in either direction, the whole will turn with the capstan-head. lf, now, the key-block L is removed, the barrel will be loose and turn freely, while the Wildcat is still secured to the shaft G, and will only turn with the capstan-head X. If, however, instead of the key-block L the key-block M is removed, the barrel Q, will remain firmly attached to the shaft G and move with the same, while the Wildcat R may freely revolve on the sleeve Z.

The base of the capstan consists of a circular plate, marked in the Ydrawings O', which is firmly secured to the`dec`k, and which forms the journal or bolster for the shaft G. This base-plate has a rim projecting above the deck, and in which a lockingsocket is made at K. Resting on this base-plate and surrounding the shaft Gr, on which it turns freely, is the disk-plate W, carrying the intermediate pinions I, which are secured to said plate by studs, on which they turn, and gear into the toothed pinion H, and also into the toothed rim H.

When, noW, the key-block L is removed and placedin the locking-socket K, the disk-plate W is secured to the base-ring O', and cannot revolve around the shaft Gor with the same. The toothed gear H, therefore, revolving with the shaft, turns the intermediate pinions I on their studs, and they, in turning, engaging into the toothed rim H', turn the same; and this, being cast in one piece with the sleeve Z, or firmly secured to the same, turns the 'capstanbarrel and Wildcat, both together or either separate, as may be desired, with increased power at a slower speed than the capstanhead, and 'in the opposite direction.

All the above changes and operations are described as being done by hand-power, and the use of capstan-bars placed into thesockets S in the capstan-head X. VThe Ysame changes and operations may also, and as efficiently and more promptly, be performed by the direct application of engine-power, which we will now further describe.

The central shaft G extends below the deck, and rests in the step V to this shaft, and below the deck is rmly keyed the driving-head E, in the periphery of which a number of key-sockets are cast, as is shown in Fig. IlIj.V

Surrounding this driving-head, and turning freely on the shaft G, is the worm-.gear D, having key-sockets corresponding with the key-sockets in the driving-head E. y

When, now, the key-block F is placed as shown, so as to ftinto both the sockets of the Worm-Wheel D and driving-head E, the capstan can be worked by the engines A A,

. the connecting-rods of which are secured to the cranks B B, and thus give rotary motion to the worm C, which engages into the wormgear D, and so applies the' power of the engines to the shaft G, and thus, at the will ofthe operator, is made, by a fe-W and simple l is a direct-engine-driven capstan, and whenthe key-block yld" is removed it is a handpower capstan, all the change required behauled.

Ling the .replacing or removing of the keyblock F. l n g Wha chain is to beV hauled in by the capstan at full speed, the same is laid down on and around the Wildcat, the vbarrel being requiredlloose. Place the key-block K into the key-socket L, the key-block L being removed; now start the engines, and the wildcat will haul the chain. A rope is now required to be hauled. Replace the key-block L, and the barrel and Wildcat will move together, and both rope and chain are being If they are both required to be paid out, the friction-brake will perfectly control the operation. If, now, the power is to be increased, remove the key-block from L, and place the same in the socket at K, when the power will be increased and the speed diminished.

When the key-blocks M, K, and F are removed, and the key-blocks L and L are in place, the capstan wil-l be a simple hand-capstan, in which the capstan-head and barrel revolve in either direction at the same speed.

When, now.7 the key-block M is inserted, We have a hand-capstan and Wildcat combined, tli'ebarrel, Wildcat, and capstan-head revolvingA together.

If, now,.the key-L is removedy and placed into the key-socket K, we have a hand-power capstan, the barrel and Wildcat moving in the' opposite direction of what the capstanhead is moving, and slower, but with increased power.

If, now, the key-block F is inserted, we have a direct-engine-driven capstan, in which all the above (manges can be effected, andthe capstan .under all these various conditions drivenvby the engines A A.

All these numerous changes are effected by four simple key-blocks, at all times accessible, easily hand1ed,.not liable to get fast, or bend, or out of order.

The friction-brake is very powerful, as two eccentric-lever blocks, O O, are secured one on each end of the friction-strap, each operated by a hand-spike. The power may therefore be doubled, as both the levers may be manned; or, in the ordinary use, either one may be used separately.

Having thus described our invention, we claim as new, and desire to secure by Letters Patent as our invention- 1. The combination of the engines A A, Worm C, and Worm-gear D, with the drivinghead E secured to the shaft G, and the wormgear D by the key-block F, as and for the purpose set forth.

2. A capstan, consisting of a central shaft 4 3. In a power-capstan, the toothed rim H lass, the friction-strap N, when both ends of and sleeve Z, made in one piece or secured tothe strap are connected to levers, so that gether and to the disk-plate Y, and provided either or both may be operated, as described. with locking-sockets by which the barrel and JOSEPH P. MANTON. Wildcat, either or both, may be locked to and GEORGE H. REMINGTON. turn With the sleeve Z and the driviugshaft, Witnesses: as and for the purpose set forth. J csEPH A. MILLER,

4. In combination with a. ca-pstan or Windl JAMES G. RICHARDSON. 

